CDL Flashcards
(15 cards)
The air brake leakage rate for a combination vehicle ( engine & breaks off ) should be ____ PSI per minute
3 PSI per minute
Which part of the kingpin should the locking jaws close around? The shank
The shank
There are two things that a driver can do to prevent a rollover. 1: go slow around turns and 2:
Keep the cargo close to the group as possible
Why should you lock the tractor glad hand to each other when you are not towing a trailer?
It will keep dirt or water out of the lines
The hang valve should be used?
To test the trailer brakes
After you have couple the trailer you should have to raise the landing gear by using?
Low gear
The safest way to make a turn without another traffic lane is ?
You should turn wide as you complete the turn
When driving a set of doubles, it is necessary to close which shut off valve in the last trailer?
Back
Glad hands are usually connecting what?
Service and emergency airlines from the vehicle to the trailer
There are two things that a driver can do to prevent a rollover first is to keep the cargo as close to the ground as possible in the second is too?
Go slow around turn
What will happen? Write the way if the service line comes apart while you are driving a combination vehicle but their emergency line stays together?
Nothing is likely to happen until you try to apply the brakes
Air brakes equipped trailer made before 1975 do not have what
Often do not have spring breaks
You are about to back your trailer under a semi trailer. The trailer is at the right height when the?
The trailer will be lifted slightly when the tractor backs under it
Tractor with ____ trailer requires the shortest amount of stopping distance
Fully loaded
You have pushed the trailer air supply valve. You should not back a trailer under a trailer until the air system is at
Normal pressure
